/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraActor.h
Set true for this actor to self-destruct when the Niagara system finishes, false otherwise
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=NiagaraActor) void SetDestroyOnSystemFinish ( bool bShouldDestroyOnSystemFinish )